Nitrogen-vacancy doped CVD diamond for quantum applications: A review

This paper summarizes recent progress in growth of ultra-pure CVD diamond, starting from the selection proper substrates to plasma treatments for the growth of dislocation-minimized diamond. Typical properties of ultra-pure diamonds are introduced like cathodoluminescence, carrier mobilities and optical absorption. The doping of diamond with nitrogen is the central topic of the second part. It covers incorporation probability, nitrogen atomic arrangements and detection schemata like IR and UV optical absorption. Finally, the formation of NV center in the bulk and close to the surface of diamond is introduced in combination with spin coherence properties, which are dominated by 13C, nitrogen, and phosphorus spin bathes. The properties of NV centers generated by implantation close to the surface are compared with bulk properties.